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Driver circuit for one or more optical transmitting components, receiver circuit for one or more optical receiving components, and method

A technology of a driver circuit and an optical sending component, applied to a driver circuit of one or more optical sending components for optical wireless communication, a receiver circuit of one or more optical receiving components and the field

Pending Publication Date: 2022-04-22
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional wired communication links do not always provide the necessary mobility / flexibility, hence the increasing need for wireless data links

Method used

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  • Driver circuit for one or more optical transmitting components, receiver circuit for one or more optical receiving components, and method
  • Driver circuit for one or more optical transmitting components, receiver circuit for one or more optical receiving components, and method
  • Driver circuit for one or more optical transmitting components, receiver circuit for one or more optical receiving components, and method

Examples

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Embodiment Construction

[0097] Before discussing embodiments of the present invention in more detail below with reference to the drawings, it should be noted that identical, functionally equivalent or equivalent elements, objects and / or structures are provided with the same reference numerals in different drawings such that Descriptions of these elements shown in different embodiments are interchangeable or applicable to each other.

[0098] figure 1 A schematic diagram showing a driver circuit 120 or control circuit for one or more optical transmission components 220 is shown. The driver circuit 120 is connected to one or more light transmitting components 220 and includes a controlled current source with a control circuit.

[0099] The driver circuit 120 receives an input signal 115, which may be a current signal or a voltage signal. The input signal 115 controls the current source of the driver circuit 120 , and the driver circuit 120 provides a control current 240 to the one or more optical tra...

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PUM

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Abstract

The invention relates to a driver circuit for one or more optical transmitting components, the circuit having a controlled current source with a control loop. The control loop is designed such that the transmission characteristic of the driver circuit is a maximum value at a predetermined frequency. The invention also relates to a receiver circuit for one or more optical receiving components for optical wireless communication. The receiver circuit has, for example, a compensation circuit designed to at least partially compensate for the effect of the capacitance of the one or more light receiving components, where the compensation circuit is coupled to the two terminals at least at one of the one or more light receiving components. The receiver circuit has an amplifier circuit designed to obtain an amplified output signal based on the current transmitted by the one or more optical receiving components. The compensation circuit is designed, for example, to generate a maximum value of the frequency response in order to at least partially compensate for the low-pass response of the amplifier circuit.

Description

technical field [0001] Embodiments in accordance with the present invention relate to driver circuits for one or more optical transmitting components, receiver circuits for one or more optical receiving components, and methods for optical wireless communication. Background technique [0002] Optical wireless communication can address interference issues through spatially well-defined communication links, since the field of view of transceivers is always strictly limited, usually in the shape of a cone. There are two conventional methods to achieve data rates (baud rates) in the range > ≥ 100Mbit / s at the transmitter, however, both methods have their own disadvantages: [0003] Traditional light emitting diodes (LEDs) are combined with complex modulation methods such as OFDM (Orthogonal Frequency Division Multiplexing). However, this results in significant system complexity and high power consumption. These systems can be optimized by using simple modulations such as PAM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/114H04B10/116H05B45/30
CPCH04B10/1143H04B10/116H05B45/30
Inventor 勒内·基尔巴赫本亚明·雅各布
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV